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Patent Searching and Data


Title:
POWER INPUT CIRCUIT AND INVERTER-INTEGRATED VEHICULAR ELECTRIC COMPRESSOR EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2024/062858
Kind Code:
A1
Abstract:
[Problem] To provide a power input circuit capable of limiting excessive inrush current generated when smoothing capacitors are charged as a result of DC power being turned on. [Solution] This power input circuit is provided with: an EMC filter circuit 7 with a smoothing capacitor 12; a power switching element Q2 on the second stage side of the power input circuit; a switch circuit 23 for turning on/off the power switching element Q2; an inrush current limiting circuit 9 on the second stage side that limits inrush current by adjusting the voltage of the control electrode of the power switching element Q2; a power switching element Q4 on the first stage side that makes the conduction path between the EMC filter circuit 7 and a battery 2 conductive/non-conductive; and an inrush current limiting circuit 10 on the first stage side that limits inrush current when the battery 2 is turned on, by adjusting the gate voltage of the power switching element Q4.

Inventors:
KUDO KEIYA (JP)
SAITO MASATOSHI (JP)
Application Number:
PCT/JP2023/031298
Publication Date:
March 28, 2024
Filing Date:
August 29, 2023
Export Citation:
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Assignee:
SANDEN CORP (JP)
International Classes:
G05F1/56
Foreign References:
JP2002354794A2002-12-06
JP2019205286A2019-11-28
JP2012143114A2012-07-26
JP2008072826A2008-03-27
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